falling_factorial() [1/5]

template<typename T >

fvar< T > stan::math::falling_factorial ( const fvar< T > &  x, int  n  )

inline

Return autodiff variable with the gradient and result of the falling factorial function applied to the inputs.

Will throw for NaN x and for negative n, as implemented in primitive function.

Template Parameters

T	inner type of the fvar

Parameters

x	Argument.
n	Argument

Returns

tangent of falling factorial at arguments.

Definition at line 26 of file falling_factorial.hpp.